This antenna has been designed for radiating Right Hand Circular Polarization (RHCP) in the UHF band with an ultra-small form factor. The antenna provides a 110° wide beam angle RHCP radiation. A 3 dBic peak gain is obtained in the broadside direction. The structure can be ordered for 3 different frequency bands: 868, 915, or 923 MHz. The antenna is connected through a SMA Male or a 100mm flexible cable using a U.FL connector.
The primary application of this antenna is LP-WAN communication with a low-orbit satellite. This antenna has been successfully tested with the LacunaTM network which is operated at the 865 MHz and 915 MHz bands. This antenna can also be used for RFID reader applications. Circular polarization is also an advantageous feature for communication with the linear antenna. Indeed, classical alignment mismatch is naturally compensated. In a multi-path channel, as it is classically found in the urban or indoor applications, CP will statistically provide better robustness for communication.
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